In the double-slit experiment, the phenomenon observed is typically explained in terms of interference between two wavefronts. When a beam of particles, such as electrons or photons, passes through two closely spaced slits, it creates an interference pattern on a screen placed behind the slits.
Each slit acts as a source of a new wavefront, and these wavefronts propagate and overlap with each other. This overlapping of wavefronts leads to the constructive and destructive interference of waves, resulting in the characteristic pattern on the screen.
The interference pattern observed in the double-slit experiment is commonly explained using wave-like behavior, where the particles are described by a wavefunction that spreads out and interferes with itself. This interpretation is consistent with the wave-particle duality of quantum mechanics.
The quantum field you mentioned is related to the underlying framework of quantum field theory (QFT), which describes the behavior of quantum fields in a relativistic context. In QFT, particles are interpreted as excitations of their respective quantum fields. However, the concept of quantum fields is typically not invoked to explain the interference pattern observed in the double-slit experiment directly.
Instead, the interference pattern is explained using the wave nature of particles as described by their wavefunctions. The wavefunction of a particle represents the probability amplitude for finding the particle at a particular location, and it exhibits wave-like behavior, including interference effects.
It's important to note that the interpretation of quantum mechanics and the understanding of the underlying mechanisms involved are subject to ongoing research and debate. Different interpretations and approaches may provide alternative explanations or perspectives on the phenomenon. However, the wave-like behavior of particles and the interference observed in the double-slit experiment are well-established and widely accepted aspects of quantum mechanics.